Apparatus for uniting parts of hollow india-rubber goods.



N0. 674,06l. Patented May l4, 190i. H. HAMET.

APPARATUS FOR UNITING PARTS OF HOLLOW INDIA RUBBER GOODS.

(Application filed May 24, 1900.)

3 Sheats$heet I.

(No Model.)

959 614144... fia/ wm N0. 674.06I. Patented May l4. l90l.

H. HAMET.

APPARATUS FOR UNITING PARTS OF HOLLOW INDIA'RUBBER GOODS.

(Application filed May 24, 1900.)

(No Model.)

3 Sheath-Sheet 2.

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No. 674,06I. Patented May l4, 190i. H. HAMET.

APPARATUS FOR UNITING PARTS OF HOLLOW INDIA RUBBER 60008.

(Application filed May 24, 1900.) (No Modal.) 3 Sheeis$heet 3.

HENRI HAMET, OF PARIS, FRANCE.

APPARATUS FOR UNITING PARTS OF HOLLOW INDIA-RUBBER GOODS.

SPECIFICATION forming part Of Letters Patent No. 674,061, dated May 14,1901. Application filed May 24:, 1900. Serial No. 17,817. (No model.)

To all whom it may concern.-

Be itknown that 1, HENRI HAMET, engineer, of 34 Rue Piat, in the city ofParis, Republic of France, have invented Improvements in Apparatus forUniting the Parts of Hollow India-Rubber Goods, of which the followingis a full, clear, and exact description.

This invention relates to a machine for mechanically uniting by means ofa suitable oement the two parts of hollow articles of caoutchouc.

The machine essentially comprises two holders or supports respectivelyadapted to receive the two parts of the article, and one or both ofwhich may be put in communication with a vacuum-pump in order that thetwo parts of the article may be retained in their holders by atmosphericpressure. The two holders are adapted to close together, so as to bringinto contact, with or without overlapping, the edges of the two parts tobe united, the said edges having preferably been previously coated withcaoutchouc-cement. The union of the two parts is insured by means ofcompressed air applied to press either upon the interior or exterior ofthe article, so as to strongly press together the cemented edges, or thearticle may be forced through one of the holders, which corresponds inform to but is slightly smaller internally than the article, so that theouter edge of the one half of the article will be thereby forciblypressed into contact with the inner edge of the other half.

I will now describe a machine acting in the above way for cementingtogether the two hemispherical parts of a rubber ball previously formedby pressing or molding in dies. In this machine one of the holders is ahemispherical cup adapted to receive the one half of the ball and to beconnected at will with a vacuum-pump or with a reservoir of compressedair, while the other holder is a ring or die adapted to receive theother half of the ball, its internal diameter being slightly smallerthan the external diameter of the ball. The one half of the ball havingbeen placed in the cup-holder and the connection opened with thevacuum-pump, the said half is retained in its holder by atmosphericpressure. The ring-holder in which the other half of the ball is held isthen pressed against the cup,

so as to cause the edges of the two halves of the ball (which havepreviously been coated with rubber-cement) to slightly overlap eachother, the edge of the half which is held in the ring being outermost.The cup-holder is then placed in communication with the reservoir ofcompressed air, whereby the two halves of the ball are forced throughthe ringholder, which being of slightly-smaller diameter pressestogether the cemented edges, and thus unites the two parts of the ballaround its whole circumference.

In the accompanying drawings, Figure 1 represents an elevation, Fig. 2an end view, and Fig. 3 a plan, of the machine.

In all figures of the drawings the pipe connections have been omitted inorder to avoid obscuring other portions of the machine.

The same letters of reference denote like parts in all the figures.

The machine comprises a holder at, which in the present example is madein the form of a hemispherical cup; but it would be made to suit theform of the article to be cemented. The holder at has two pipe-nozzles b0, respectivelyconnected to two chambers d 6 through intermediate pipes.(Not shown.) The chambers cl e may be provided, respectively, withvalvesf g, the one, d, controlling communication with a vacuum pump andthe other, e, from a com pressed-air reservoir. The holder at isdesigned to receive the hemispherical half 77, of the ball, the otherhalf h being carried in a ring 1' of slightly-smaller internal diameterthan the external diameter of the rubber ball, of slightly splayed form,as shown in Fig. 1, to admit of the splayed edge of the half hoverlapping the edge of the half h. The cup at and ring 2' are mounted,respectively, upon arms j 7c, keyed the one upon a shaft land the otherupon a sleeve 1%, said shaft and sleeve being geared by bevel-pinions n0 with an intermediate bevelpinion p, keyed on a rock shaft q, uponwhich is mounted the hand-operated lever r, serving not only to turn therock-shaft q for the purpose of closing together or separating theholders a i, but also to open the vacuumvalve f or compressed-air valve9. For the latter purpose the lever 1' is mounted to oscillate upon across-pin q in the end of shaft q in order that whenthe shaft q isrocked by the lever to one or other of its extreme positions the levermay be in a position to act on and open the corresponding valve f or g.The lever 1' acts on valve g directly and on valve fthrough a smallintermediate lever s. The hand-operated lever r has a tailpiece r, whichworks in a guide provided with recesses 25, and permitting of the lever'1 being oscillated by hand about pin q to act upon valvesf or 9 onlywhen the lever is in the one or other of its extreme positions.

The operation of the machine is as follows: The hand-lever 1" being inthe position shown in Fig. 2, the two armsj k are separated, asindicated by broken lines in Fig. 1. The two halves h h of the ball,previously cemented upon their outer and inner overlapping edges, areplaced in the holders a and 2'. The half 71. having been placed in theholder a, the lever r is then swung by hand upon its axis q in thedirection of the arrow in Fig. 1, so as to open valvef and put theholder a in communication with the vacuum-pump, and thus cause the partit to be held by atmospheric pressure in the holder at. The lever r isthen returned by hand, as shown in Fig. 1, so as to close valve f, andit is then moved by hand in the direction of the arrow in Fig. 2, thisangular movement of the lever r having for efiect to turn shaft Z andsleeve m in opposite directions, this causing ring '0' to be firmlypressed against the holder a and the edge of the part it to enterslightly within or be overlapped by the edge of part h, as shown inFig. 1. The lever 'r is then again rocked upon its axis q to open valveg and admit compressed air to pass through the chamber 6 and theintermediate pipe connections (not shown) to the holder a, andcompressed air thus conducted to the rear face of the article containedin the holder at forces the indiarubber article through the ring 11,which being slightly less in internal diameter than the exteriordiameter of cap 72. causes a rubbing action which has for effect topress the edge of part 77/ into contact with that of part h. Theoverlapping edges having been previouslycoated with rubber-cement arethus firmly united. The completed article is thus ejected from themachine, after which the lever r is moved back in order to again closethe compressed-air valve, and then returned to its original position inorder to separate the holders in readiness to receive other preparedparts it h to be united. The machine thus enables the parts to bespeedily and completely united.

If both parts it h of the article require to be firmly held during theoperation, the machine may have a pair of holders, such as a, bothconnected with a vacuum pump and mold in a similar manner to the holderat, above described, a ring die 11 being interposed between thetwocup-shaped holders.

At the commencement of the operation the second cup-shaped holder isclose against the ring, the part h of the article being held in both;but the cup-holder is moved away from the ring on the admission ofcompressed air to the other holder in order to allow of the completedarticle being ejected through the rm g.

Rubber articles of any form or dimensions may be cemented in thismachine, the details of arrangement of the parts being modified to suitrequirements.

The union of the two parts may also be effected by the admission ofcompressed air within the article or by causing compressed air to exertpressure upon the exterior of the article.

I claim- 1. A machine for uniting a plurality of component parts of anarticle of rubber, said machine comprising holders for the parts to beunited, means for moving said holders with relation to each other so asto bring the separate parts into the position they are to assume in thefinished article, a vacuum-pump adapted to be placed in communicationwith one of said holders in order that the part contained therein may beheld in place by at mospheric pressure and means for effecting a unionof the previously-cemented parts of the article by a compression of airthereon.

2. A machine for uniting a plurality of com- 'ponent parts of an articleof rubber, said machine comprising holders for parts to be united, oneof said holders being open from side to side and smaller in diameterthan the part of the article held therein,'means for moving said holderswith relation to each other so as to bring the separate parts of thearticle into overlapping engagement and means connected to one of saidholders for effecting an air-pressure upon the article to force itthrough the open holder and to unite the previously-cemented parts ofthe article.

3. In a machine for uniting a plurality of component parts of an articleof rubber, said machine comprising holders for the parts to be united,one of said holders being open from side to side and smaller in diameterthan part of the article held therein, means for moving said holders soas to bring the separate parts of the article into overlappingengagement, a vacuum-pump adapted to be placed in communication with oneof said holders in order that the part contained therein may be held inplace by atmospheric pressure and means connected to one of said holdersfor effecting an air-pressure upon the article to force it through theopen holder and to unite the previously-cemented parts of the article.

4. In a machine of the character described, the combination of aplurality of holders for holding the separate parts of a rubber article,means for effecting a movement of the holders with relation to eachother, a vacuumpump valve which controls the communica- ITO.

tion between said vacuum-pump and one of provements in apparatusforuniting the parts the holders, an air compressor and valve for ofhollow india-rubber goods signed by me controlling the communicationbetween said this 5th day of May, 1900.

air-compressor and one of the holders and a HENRI HAMET. 5 single leverfor controlling the movement of Witnesses:

said holders and valves. EDWARD P. MAOLEAN, The foregoing specificationof my Im- MAURICE H. PIGNET.

